I would say it's pretty much done then, most Aircraft carriers are quite literally Runways with a ship under them, this ship looks perfectly functional and believable as a Carrier.
I suppose the SCP could let you do some cool things with the textures as they are

Are you going to use an animated glowmap for the landing lights along the side of the bays? That would be cool

Another nice little texture effect would be to use a specular map that is very bright for the light gray panels, and quite dark for the rest of the texture, that would help add that 'Armour' feel to them

The only other thing I might suggest is maybe put some lights on the lower bridge section, sort of crew quarters?
Flipside